2HCl+Na2S=2NaCl+H2S(气体符号)
2HCl+Na2S2O3=2NaCl+S(沉淀符号)+SO2(气体符号)+H2O
4HCl+NaAlO2=AlCl3+NaCl+2H2O
HCl+Na2SO4不反应,若为Na2SO3则:
2HCl+Na2SO3=2NaCl+SO2(气体符号)+H2O
2HCl+Na2S=2NaCl+H2S(气体符号)
2HCl+Na2S2O3=2NaCl+S(沉淀符号)+SO2(气体符号)+H2O
4HCl+NaAlO2=AlCl3+NaCl+2H2O
HCl+Na2SO4不反应,若为Na2SO3则:
2HCl+Na2SO3=2NaCl+SO2(气体符号)+H2O